根据单井双泵组合举升比单一有杆泵举升能更有效地开采高压、高粘、低渗透、低液面油井的新构想，开发了“有杆泵＋射流泵”单井双泵组合举升工艺，介绍了与之配套的套管固定式井下射流泵的研制和试验情况，引入了射流元件的参数匹配相关式，并给出了匹配步骤。试验结果表明，新开发的单井双泵组合举升工艺及与其配套的套管式射流泵切实可行。与单一有杆泵举升相比，在相同条件下，“有杆泵＋射流泵”单井双泵组合举升可显著降低有杆泵下入深度，减轻抽油机载荷，改善油井抽汲条件和产出波的运移性，增油效果显著。 According to the new concept of single-well double-pump combination lifting more efficient than the single rod pump in the exploitation of high-pressure, high viscosity, low permeability and low liquid level wells, the development of “rod pump + jet pump” single well double pump Combined with the lifting process, the development and experiment of casing fixed downhole jet pump are introduced. The matching formulas of the parameters of jet element are introduced and the matching steps are given. The test results show that the newly developed single well double-pump combined lifting technology and its supporting casing jet pump is feasible. Compared with single rod pump lifting, under the same conditions, single rod and double pump combination lifting of “rod pump + jet pump” can significantly reduce the depth of the rod pump, reduce the load on the pumping unit and improve the well pumping efficiency Conditions and the output of the wave of migration, increase oil effect is remarkable.